論文 - 詳細
| RRC ID | 4920 |
|---|---|
| 著者 | Desai KK, Miller BG. |
| タイトル | A metabolic bypass of the triosephosphate isomerase reaction. |
| ジャーナル | Biochemistry |
| Abstract |
Triosephosphate isomerase (TIM) catalyzes the interconversion of d-glyceraldehyde 3-phosphate and dihydroxyacetone phosphate, an essential step in glycolytic and gluconeogenic metabolism. To uncover promiscuous isomerases embedded within the Escherichia coli genome, we searched for genes capable of restoring growth of a TIM-deficient bacterium under gluconeogenic conditions. Rather than discovering an isomerase, we selected yghZ, a gene encoding a member of the aldo-keto reductase superfamily. Here we show that YghZ catalyzes the stereospecific, NADPH-dependent reduction of l-glyceraldehyde 3-phosphate, the enantiomer of the TIM substrate. This transformation provides an alternate pathway to the formation of dihydroxyacetone phosphate. |
| 巻・号 | 47(31) |
| ページ | 7983-5 |
| 公開日 | 2008-8-5 |
| DOI | 10.1021/bi801054v |
| PMID | 18620424 |
| MeSH | Alcohol Oxidoreductases / genetics Alcohol Oxidoreductases / metabolism Aldehyde Reductase Aldo-Keto Reductases Catalysis Dihydroxyacetone Phosphate / chemistry Dihydroxyacetone Phosphate / metabolism Escherichia coli / enzymology Escherichia coli / genetics Escherichia coli / metabolism Escherichia coli Proteins / genetics Escherichia coli Proteins / metabolism* Glyceraldehyde 3-Phosphate / chemistry Glyceraldehyde 3-Phosphate / metabolism Models, Biological Stereoisomerism Substrate Specificity Sugar Phosphates / chemistry Sugar Phosphates / metabolism* Triose-Phosphate Isomerase / genetics Triose-Phosphate Isomerase / metabolism* Trioses / metabolism |
| IF | 2.865 |
| 引用数 | 16 |
| WOS 分野 | BIOCHEMISTRY & MOLECULAR BIOLOGY |
| リソース情報 | |
| 原核生物(大腸菌) | ASKA |